/**
 * Copyright (c) 2021 OceanBase
 * OceanBase CE is licensed under Mulan PubL v2.
 * You can use this software according to the terms and conditions of the Mulan PubL v2.
 * You may obtain a copy of Mulan PubL v2 at:
 *          http://license.coscl.org.cn/MulanPubL-2.0
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PubL v2 for more details.
 */

#ifndef OCEANBASE_SHARE_SCHEMA_OB_USER_SQL_SERVICE_H_
#define OCEANBASE_SHARE_SCHEMA_OB_USER_SQL_SERVICE_H_

#include "ob_ddl_sql_service.h"

namespace oceanbase {
namespace common {
class ObISQLClient;
}
namespace share {
class ObDMLSqlSplicer;

namespace schema {
class ObUserInfo;

class ObUserSqlService : public ObDDLSqlService {
public:
  ObUserSqlService(ObSchemaService& schema_service) : ObDDLSqlService(schema_service)
  {}
  virtual ~ObUserSqlService()
  {}

  virtual int create_user(const ObUserInfo& user, const int64_t new_schema_version,
      const common::ObString* ddl_stmt_str, common::ObISQLClient& sql_client);
  virtual int alter_user(const ObUserInfo& user, const int64_t new_schema_version, const common::ObString* ddl_stmt_str,
      common::ObISQLClient& sql_client);
  virtual int drop_user(const uint64_t tenant_id, const uint64_t user_id, const uint64_t new_schema_version,
      const common::ObString* ddl_stmt_str, common::ObISQLClient& sql_client,
      share::schema::ObSchemaGetterGuard& schema_guard);
  virtual int rename_user(const ObUserInfo& user_info, const int64_t new_schema_version,
      const common::ObString* ddl_stmt_str, common::ObISQLClient& sql_client);
  virtual int set_passwd(const ObUserInfo& user_info, const int64_t new_schema_version,
      const common::ObString* ddl_stmt_str, common::ObISQLClient& sql_client);
  virtual int set_max_connections(const ObUserInfo &user_info, const int64_t new_schema_version,
      const ObString *ddl_stmt_str, ObISQLClient &sql_client);
  virtual int alter_user_require(const ObUserInfo& user_info, const int64_t new_schema_version,
      const common::ObString* ddl_stmt_str, common::ObISQLClient& sql_client);
  virtual int grant_revoke_user(const ObUserInfo& user_info, const int64_t new_schema_version,
      const common::ObString* ddl_stmt_str, common::ObISQLClient& sql_client);
  virtual int lock_user(const ObUserInfo& user_info, const int64_t new_schema_version,
      const common::ObString* ddl_stmt_str, common::ObISQLClient& sql_client);
  virtual int update_user_schema_version(const uint64_t tenant_id, const common::ObArray<ObUserInfo>& user_infos,
      const common::ObString* ddl_stmt_str, common::ObISQLClient& sql_client);
  virtual int alter_user_profile(
      const ObUserInfo& user_info, const common::ObString* ddl_stmt_str, common::ObISQLClient& sql_client);
  static int add_user_history(const ObUserInfo& user, const int64_t schema_version, common::ObISQLClient& sql_client);

  static int gen_user_dml(const uint64_t exec_tenant_id, const ObUserInfo& user, share::ObDMLSqlSplicer& dml);
  virtual int replace_user(const ObUserInfo& user, const int64_t new_schema_version,
      const common::ObString* ddl_stmt_str, common::ObISQLClient& sql_client, const ObSchemaOperationType type);

private:
  int drop_user_delete_role_grantee_map(const uint64_t tenant_id, bool is_role, const uint64_t new_schema_version,
      const ObUserInfo* user, const ObString* ddl_stmt_str, ObISQLClient& sql_client,
      share::schema::ObSchemaGetterGuard& schema_guard);

private:
  DISALLOW_COPY_AND_ASSIGN(ObUserSqlService);
};

}  // namespace schema
}  // namespace share
}  // end of namespace oceanbase

#endif  // OCEANBASE_SHARE_SCHEMA_OB_USER_SQL_SERVICE_H_
